Structure of PDB 1gsa Chain A Binding Site BS02

Receptor Information
>1gsa Chain A (length=314) Species: 37762 (Escherichia coli B) [Search protein sequence] [Download receptor structure] [Download structure with residue number starting from 1] [View receptor structure]
MIKLGIVMDPIANINIKKDSSFAMLLEAQRRGYELHYMEMGDLYLINGEA
RAHTRTLNVKQNYEEWFSFVGEQDLPLADLDVILMRKDPPFDTEFIYATY
ILERAEEKGTLIVNKPQSLRDCNEKLFTAWFSDLTPETLVTRNKAQLKAF
WEKHSDIILKPLDGMGGASIFRVKEGDPNLGVIAETLTEHGTRYCMAQNY
LPAIKDGDKRVLVVDGEPVPYCLARIPQGGETRGNLAAGGRGEPRPLTES
DWKIARQIGPTLKEKGLIFVGLDIIGDRLTEINVTSPTCIREIEAEFPVS
ITGMLMDAIEARLQ
Ligand information
Ligand IDMG
InChIInChI=1S/Mg/q+2
InChIKeyJLVVSXFLKOJNIY-UHFFFAOYSA-N
SMILES
SoftwareSMILES
ACDLabs 10.04
OpenEye OEToolkits 1.5.0		[Mg+2]
CACTVS 3.341[Mg++]
FormulaMg
NameMAGNESIUM ION
ChEMBL
DrugBankDB01378
ZINC
PDB chain1gsa Chain A Residue 320 [Download ligand structure] [Download structure with residue number starting from 1] [View ligand structure]
Receptor-Ligand Complex Structure
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PDB1gsa A pseudo-michaelis quaternary complex in the reverse reaction of a ligase: structure of Escherichia coli B glutathione synthetase complexed with ADP, glutathione, and sulfate at 2.0 A resolution.
Resolution2.0 Å
Binding residue
(original residue number in PDB)		E281 N283
Binding residue
(residue number reindexed from 1)		E281 N283
Annotation score1
Enzymatic activity
Catalytic site (original residue number in PDB) K125 K160 R210 R225 R233 D273 E281 N283
Catalytic site (residue number reindexed from 1) K125 K160 R210 R225 R233 D273 E281 N283
Enzyme Commision number 6.3.2.3: glutathione synthase.
Gene Ontology
Molecular Function
GO:0000287 magnesium ion binding
GO:0003824 catalytic activity
GO:0004363 glutathione synthase activity
GO:0005524 ATP binding
GO:0016874 ligase activity
GO:0042802 identical protein binding
GO:0046872 metal ion binding
Biological Process
GO:0006750 glutathione biosynthetic process
GO:0051289 protein homotetramerization
Cellular Component
GO:0005737 cytoplasm
GO:0005829 cytosol

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Molecular Function
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Biological Process
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Cellular Component
External links
PDB RCSB:1gsa, PDBe:1gsa, PDBj:1gsa
PDBsum1gsa
PubMed8810901
UniProtP04425|GSHB_ECOLI Glutathione synthetase (Gene Name=gshB)

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